Show simple item record

Comparison of light effects on periphytic algal biomass and relative species abundances in open and shaded areas of a lotic waters.

dc.contributor.authorPerry, Donna M.en_US
dc.coverage.spatialMaple Riveren_US
dc.date.accessioned2007-06-14T22:12:08Z
dc.date.available2007-06-14T22:12:08Z
dc.date.issued1993en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54469
dc.description.abstractThe purpose of this study was to analyze the effects of light on algal biomass and relative algal cell type abundances in open sunlight and shaded areas. Algal biomass and chlorophyll a measurements were used to compare the production of algae cells in these areas. Ash-free dry weight (AFDW) was used to determine biomass. This experiment took place in Maple River of Pellston, Michigan (Lat. 45 30.5' N, Long. 84 46' W, SE 1/4 of Sec. 14 T36N R4W). The study began on July 28, 1993 and was completed on August 4, 1993. Algal biomass, chlorophyll a content and relative abundances were expected to differ substantially, although, the relative abundances of algal cell types did not very significantly (T calc = 17.5, T crit = 10, alpha = 0.05). Surprisingly, the average light intensities did not vary enough, statistically, under the shaded and in the open areas chosen, (T calc = 10, T crit = 10). This statistical analysis could be due to error in the procedure. Considering these factors, it was determined that light intensities did increase algal biomass, but did not have an effect on relative species abundances due to the biology of several algae genus.en_US
dc.format.extent324803 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.subjectGeneral Ecologyen_US
dc.subject.otherLIGHTen_US
dc.subject.otherINTENSITYen_US
dc.subject.otherALGAEen_US
dc.subject.otherBIOMASSen_US
dc.subject.otherABUNDANCEen_US
dc.titleComparison of light effects on periphytic algal biomass and relative species abundances in open and shaded areas of a lotic waters.en_US
dc.typeWorking Paperen_US
dc.subject.hlbsecondlevelNatural Resource and Environmenten_US
dc.subject.hlbtoplevelScienceen_US
dc.contributor.affiliationumBiological Station, University of Michiganen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/54469/1/2907.pdfen_US
dc.description.filedescriptionDescription of 2907.pdf : Access restricted to on-site users at the U-M Biological Station.en_US
dc.owningcollnameBiological Station, University of Michigan (UMBS)


Files in this item

Show simple item record

Accessibility: If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.